@class QSSStartTextToSpeechStreamingRequest;
@interface QSSMutableTextToSpeechStreamingStreamingRequest : QSSTextToSpeechStreamingStreamingRequest
@property (nonatomic) long long content_type;
@property (copy, nonatomic) QSSStartTextToSpeechStreamingRequest *contentAsQSSStartTextToSpeechStreamingRequest;
- (id)init;
- (id)copyWithZone:(struct _NSZone { } *)a0;
@end